ferricyanide‚ K3Fe(CN)6 ferrous sulphate‚ FeSO4 sodium hydroxide‚ NaOH sodium chloride‚ NaCl hydrochloric acid‚ HCl potassium hydroxide‚ KOH potassium nitrate‚ KNO3 nitric acid‚ HNO3 trisodium phosphate‚ Na3PO4 sodium thiocyanate‚ NaSCN sulfuric acid‚ H2SO4 distilled water‚ dH2O B. Apparatus test tubes iron ring 250-mL beaker iron stand bunsen burner C. Others iron nails copper strip sand paper zinc strip pliers 2 III. Procedure A. Reactions of Iron with various Aqueous Solutions In determining
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February 27‚ 2015 Date Submitted: March 06‚ 2015 Answers to Questions: 1.) Balanced equations: A. Lucas Test Test Sample Equation Ethyl Alcohol C2H5OH + HCl + ZnCl2 C2H5Cl + H2O Isopropyl Alcohol (CH3) 2CHOH + HCl (CH3) 2CHCl + ZnC2 + H2O Tert-butyl Alcohol (CH3) 3COH + HCl + ZnCl2 (CH3) 3CCl + ZnCl2 +H2O Benzyl Alcohol C6H5CH2OH + HCl + ZnCl2 C6H5CH2Cl +ZnCl2 +H2O B. Oxidation of Alcohols Test Sample Equation Ethyl Alcohol C2H5OH + KMnO4 CH3COOH + H2O + MnO2 +K+ Isopropyl Alcohol 2(CH3)2CHOH
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Brand Name & Punch Line INGREDIENTS Vitamin A Vitamin D3 Thiamin Mononitrate Riboflavin I.P Pyridoxine Hcl IP Mecobalamin Niacinamide Calcium Pantothenate IP (vitamin B5) vitamin C (Ascorbic acid) Vitamin E Biotin Magnesium Copper Zinc Molybdenum Selenium Chromium Lutein (10%) Folic acid Zeaxanthin QTY. 5000 IU 400 IU 5 MG 5 MG 1.5 MG 500 MCG 50 MG 10 MG 75 MG 25 mg 150 MCG 30 mg 0.55 mg 21 mg 11 mcg 37 mcg 32 mcg 6 mg 1.5 mg 300 mcg Composition PACK SIZE SALES PACK THERAPY PACK CASE
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prepare plasma standards to construct the calibration curve. C. Pre-chromatographic isolation of baclofen from plasma Prior to chromatography‚ baclofen from plasma constituents was isolation by adding 0.25 ml of acetonitrile and approximately 25 mg of zinc sulphate crystals to 0.50 ml of plasma. The aged plasma was stored at - 250C. This plasma was thawed at room temperature and 0.50 ml of thawed plasma was pipette into a clean disposable borosilicate test tube. An aliquot of the standard stock solution
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SSN COLLEGE OF ENGINEERING DEPARTMENT OF CHEMICAL ENGINEERING V Semester – CH 2307 TECHNICAL ANALYSIS LAB -2010 INDEX SHEET CYCLE ONE Date of Condn. Date of Subn. Sign 1 Estimation of COD of the given sample of water. 2 Estimation of Manganese in the given pyrolusite ore. 3 Estimation of Magnesium by EDTA method. 4 Estimation of purity of drug using pH meter. 5 Estimation of Ammonia in ammonium salts. 6 Polarimetric estimation of sugar
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following questions‚ assume that the densities and specific heat capacities of the solutions are the same as pure water i.e. ρ = 1.0 gcm-3 and c = 4.18 Jg-1K-1 1. Zinc will displace copper from copper (II) sulphate solution according to the following equation: CuSO4(aq) + Zn(s) ( Cu(s) + ZnSO4(aq) If an excess of zinc powder is added to 50 cm3 of 1.0 moldm-3 copper(II) sulphate‚ the temperature increases by 6.3 oC. Calculate the enthalpy change for the reaction. 2. Magnesium will
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Solution Review Complete all questions in this package. Be careful to use correct significant figures and units for any calculation problems. For all chemical equations use phase subscripts. Concentration 1. Calculate the concentration of the solution formed when 23.61 g of sodium phosphate is dissolved in 475.0 cm3 of water. 2. What volume of water is needed to dissolve 85.8 g of silver nitrate to make a 2.650 M solution? 3. What mass of magnesium sulphate is needed to make 1500
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Problems based on tertiary alcohol IV. Problems based on glycol and glycerol V. Problems based on phenol VI. Problems based on benzyl alcohol d-Block Elements I. Problems based on copper II. Problems based on chromium III. Problems based on zinc IV. Problems based on silver V. Problems based on gold Carbonyl compounds I. Problems based on acetaldehyde and acetone II. Problems based on benzedehyde III. Problems based on benzophenone & acetophenone Electro Chemistry - I Page No.
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Table 8.1- Combustion of magnesium ribbon Observations Reaction was exothermic; magnesium ribbon burned and was glowing a bright white color when ignited. Reactants: Mg and O2 Products: MgO Balanced chemical equation 2Mg + O2 2MgO Table 8.2- Combustion of heptane Observations When holding test tube inverted over heptane flame‚ condensation formed against top walls of the test tube. When the burning splint was added the walls of the test tube became less foggy from the condensation
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H+(aq) ions in the reaction mixture increases as the reaction proceeds. Hence the progress of the reaction can be followed by measuring the concentration of H+(aq) ions by titrimetric analysis. 9 F The hydrogen gas formed in the reaction between zinc and dilute hydrochloric acid CANNOT escape from a closed reaction vessel. Thus‚ the mass of the reaction mixture would NOT decrease as the reaction proceeds. 10 F It is difficult to measure the volume of water produced from the reaction between oxalate
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